Telephone head set



Aug. 5, 1924. 1,503,908

R. H. MANSON TELEPHONE HEADSET Filed March 20. 1922 INVENTOR RAY H.MANSON BY X9.

Patented Aug. 5, 1924;

UNITED res RAY H. MANSON, OF ROCHESTER, NEW YORK, ASSIGNOR TO THESTROMBERG-CARLSON TELEPI-IO'NE MANUFACTURING COMPANY, OF ROCHESTER, NEWYORK, A CORPORA- TION OF NEW YORK.

TELEPHONE HEAD SET.

Application filed March 20, 1922. Serial No. 544,997.

To all whom it may concern:

Be it known that I, RAY H. MANsoN, a citizen of the United States,residing at Rochester, in the county of Monroe and State of New York,have invented certain new and useful Improvements in Telephone HeadSets, of which the following is a full, clear, concise, and exactdescription.

The present invention relates to a telephone head-set in which thereceivers are readily and accurately adjusted to the ears of the user sothat extraneous sounds are excluded. This head-set is designed so thatit is light and comfortable to the wearer and yet it is simple andinexpensive in construction.

The features of the invention which consists of the novel combinationsand arrangement of parts adapted to achieve such re sults, will bepointed out in the detailed description and appended claims.

In the drawing, Fig. 1 is a perspective view of the headset of thisinvention, While Figs. 2 and 3 are detail views showing universalfittings by which the receivers are variably positioned and by whichthey are locked in the position to which they are so adjusted.

Referring to the drawings, 5 designates a head band which consists of acurved loop of spring wire 6 formed by bending a single length of wireback upon itself. The wires of the loop, except at its ends, are coveredwith cloth webbing 7 in order that the wire may not come into contactwith the head of the user, which renders the head-set more comfortable.The ends of each strip of webbing are finished by metal binders such as8 serving to cover the loose ends of the webbing and at each end of theloop of wire there is supported a metal rod 9, which is secured to thespring wire of the head-band. The upper end of each rod as shown in Fig.3 is reduced to provide a shoulder against which cup washer 10 rests.One end of the loop of spring wire is then placed to encircle the end ofthe rod 9 and a second cup washer 11 is placed above the end of the loopof the spring wire. These cup washers 10 and 11 which rigidly clamp eachend of the headband to a rod 9, are held in position by spinning over orriveting the end of the rod A cup-sha ed post formed with a 1ong1-tudinal kerf, is provided with a cross bore to receive the rod 9 and hasa threaded opening in its end to receive a knurled thumb screw 13. Astirrup 14 of resilient material also provided with an opening 17 toreceive the rod 9 is adapted to enter the kerf in the post 12, whileeach arm of the stirrup is provided with a pin 15 to engage an openingin the receiver shell 16. This arrangement permits easy removal of thereceiver from its supporting stirrups.

In assembling the universal fittings on the rod 9, the stirrup 14 isfirst inserted into the kerf of the post 12 with the opening 17 of thestirrup registering with the opening in the post and both of thesemembers are then placed on the rod 9. In order to prevent these fittingsfrom being removed from the rod, its lower end is provided with a washer18 riveted thereto. After the stirrups have been adjusted to the desiredposition, the knurled thumb screw is turned causing the stirrup 14 tomove laterally in the kerf and bind against the rod 9 to frictionallyhold the stirrup and its receiver in the position desired.

It will thus be seen that telephone rceiver of simple construction anduniversal adjustment has been provided.

What is claimed is 1. In a telephone head-set, a head band, a rodsecured to one end of said head band, a post having a kerf therein, across bore in said post, an apertured stirrup fitted to enter said kerfwith its aperture in alignment with said cross bore, said rod beinginserted through said cross bore and aperture, means tending to forcesaid stirrup so that its aperture is out of alignment with saidcross'bore, and a telephone receiver supported by said stirrup.

2. In a telephone head-set, a pair of rigid rods each of which isprovided with a reduced end portion, a resilient head-band secured atits ends to said reduced portions of said rods, a pair of posts eachhaving a kerf and a cross bore, a pair of apertured stirrups each fittedto enter a kerf in one of said posts with its aperture in alignment withsaid cross bore, each rod being inserted through a cross bore andaperture of one of said posts and stirrups, a screw threaded in eachpost tending to force each stirrup so receiver, said member being placedbetween said arms with its opening in registry with the openings in saidarms, said rod being inserted 1n the openings in said arms and saidmember, and a set screw to'forcesaid member 7 out of registry with theopenings in said arms whereby said member grips said rod 7 to hold saidreceiver in adjusted position.

In witness whereof, I hereunto subscribe 20 my name. V

RAY H. MANSON.

